Physician Team


Charles Andrews, MD

Specializing in radiation oncology at Lehigh Valley Hospital–Pocono’s Dale and Frances Hughes Cancer Center, Dr. Andrews is a graduate of Hahnemann University School of Medicine in Philadelphia, PA. He completed his internship and residency in the department of radiation and nuclear medicine at Hahnemann and a clinical fellowship with the American Cancer Society.  

Dr. Andrews is on the active staff at Lehigh Valley Health Network (LVHN) and serves as the Chair in the Department of Radiation Oncology at the John and Dorothy Morgan Cancer Center in Allentown, PA. Prior to joining the medical staff at LVHN, Dr. Andrews worked in the Department of Radiotherapy at Lahey Clinic Medical Center in Burlington, MA. He also has extensive teaching experience, having served as a clinical assistant professor in the department of radiation oncology at the Pennsylvania State University/Milton S. Hershey Medical Center in Hershey, PA, as an assistant clinical professor and member of the adjunct faculty in the department of radiation oncology at Hahnemann University School of Medicine and member of the adjunct faculty at the Philadelphia College of Osteopathic Medicine in Philadelphia, PA. 

Dr. Andrews has been voted by his peers as the Best Physician for Radiation Oncology in the Lehigh Valley. Dr. Andrews is certified by the American Board of Radiology in Therapeutic Radiology.


Krista Bott, MD

Dr. Bott is a board-certified breast surgeon at the Dale and Frances Hughes Cancer Center and the Women’s Breast Health Center at Lehigh Valley Health Network (LVHN)’s Bartonsville Healthcare Center. She received her medical degree from Jefferson Medical College of Thomas Jefferson University in Philadelphia, PA and completed her surgical residency at LVHN in Allentown, PA where she was chief resident. During her training at LVHN, Dr. Bott was the recipient of the Stahler-Rex Research Award. Before joining LVHN as a breast surgeon, she practiced with Delta Medix in Scranton, PA. Dr. Bott is a member of the American College of Surgeons and the American Society of Breast Surgeons. She is now accepting new patients.
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Mo Lareef, MD

Dr. Lareef is a surgical oncologist practicing at the Dale and Frances Hughes Cancer Center. He specializes in surgical oncology for all types of cancer including thyroid, skin, colorectal, gastric and liver and is highly experienced in breast cancer surgery. Dr. Lareef also operates robotically. In addition, Dr. Lareef’s expertise includes cancer research, diagnosis and surgery and he has more than 15 years of experience in his field. 

He earned his medical degree at Tver State Medical Academy in Tver, Russia, and completed his internship at Graduate Hospital in Philadelphia, PA. Dr. Lareef completed his residency in general surgery at Drexel University College of Medicine and Hahnemann University Hospital in Philadelphia, where he was chief resident and his fellowship in surgical oncology at Fox Chase Cancer Center, also in Philadelphia. 

He is the recipient of the Guth Award, given by the Graduate Hospital to an exemplary house officer who displays compassion for the sick and regard to human dignity. Dr. Lareef is board-certified by the American Board of Surgery and is a member of the Surgical Society of Oncology and the American Association of Cancer Research.



Michael Marte, MD

Dr. Marte is a medical oncologist and the Medical Director of the Dale and Frances Hughes Cancer Center. He comes to Lehigh Valley Hospital – Pocono from the San Antonio Military Medical Center in San Antonio, TX where he served on the hematology/oncology staff. Prior to this position, he was Chief of Hematology/Oncology at the William Beaumont Army Medical Center in El Paso, TX. Board-certified in internal medicine, hematology and oncology, Dr. Marte has been involved in the training of interns, residents, fellows and nursing staff and served as a principal investigator for research protocols. He received his medical degree from Albert Einstein College of Medicine in Bronx, NY and completed both an internal medicine residency and his fellowship in hematology/oncology at the Walter Reed Army Medical Center in Bethesda, MD.



Sean Quinlan-Davidson, MD

Dr. Quinlan-Davidson specializes in radiation oncology. He earned his medical degree from McGill University in Montreal, Quebec, Canada, completed his residency at McMaster University Faculty of Health Sciences in Hamilton, Ontario, Canada and his fellowship at MD Anderson Cancer Center in Houston, TX. Dr. Quinlan-Davidson is board-certified by the American Board of Radiology.



William F. Ryan, MD

Dr. Ryan specializes in hematology and oncology and has been on the medical staff at Lehigh Valley Hospital – Pocono for more than three decades. Dr. Ryan has board certifications in internal medicine, hematology and oncology. Dr. Ryan received his medical degree from the State University of New York Downstate Medical Center College of Medicine in Brooklyn, NY. He completed his medical oncology/hematology fellowship at Rhode Island Hospital in Providence, RI, which is affiliated with the Brown University Program of Medicine. Dr. Ryan is a member of the American Society of Clinical Oncology.


Sonyo Shin, MD

Dr. Shin is a medical oncologist practicing at the Dale and Frances Hughes Cancer Center. She earned her medical degree at Ewha Womans University School of Medicine in Seoul, Korea. Dr. Shin completed both an internal medicine internship and a residency at Lincoln Medical Center in Bronx, NY. Dr. Shin then did a fellowship in medical oncology at East Tennessee State University in Johnson City, TN. 

Board-certified in internal medicine, hematology and oncology, Dr. Shin has been involved in cancer research at Memorial Sloan Kettering Cancer Center in New York, NY and MD Anderson Cancer Center in Houston, TX. She is a member of the American Society of Clinical Oncology. 


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